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Core-shell type fluorine-and-silicon-containing long carbon chain acrylate water and oil repellent agent

A water- and oil-repellent agent, acrylate technology, applied in the direction of repelling fibers, fiber processing, textiles and paper making, etc. The effect of improving crystallinity and improving utilization rate

Active Publication Date: 2016-08-17
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a core-shell type fluorine-containing silicon-containing long carbon chain acrylate water and oil repellent agent, which solves the problem that the hand feeling and softness of the fabric decrease when the existing fabric finishing agent treats the fabric

Method used

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  • Core-shell type fluorine-and-silicon-containing long carbon chain acrylate water and oil repellent agent

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] Step 1, weigh 14.9g of hexafluorobutyl acrylate, 1.9g of vinyltrimethoxysilane, 18.4g of isooctyl methacrylate, 4.8g of methyl methacrylate, 0.3g of hydroxyethyl acrylate, 1-ene Propoxy-3-(4-nonylphenol)-2-propanol polyoxyethylene (10) ether ammonium sulfate 0.6g, potassium persulfate 0.4g, deionized water 160g;

[0037] Step 2, preparation of shell emulsion: 14.9g of hexafluorobutyl acrylate, 1.9g of vinyltrimethoxysilane, 7.2g of isooctyl methacrylate, 1-allyloxy-3-(4-nonylphenol )-2-propanol polyoxyethylene (10) ether ammonium sulfate 0.36g, potassium persulfate 0.16g and deionized water 96g are added in the generator, stirred for 30min under the action of the stirrer, the stirring speed is 2000r / min, and then Pour the mixed solution into a high-shear dispersing emulsifier for high-speed emulsification. The emulsification time is 10 minutes, and the speed of the high-shear dispersing emulsifier is 7000 / min, and the shell emulsion is prepared for use;

[0038] Step 3...

example 2

[0041] Step 1, weigh 22.4g of dodecafluoroheptyl acrylate, 2.8g of vinyltriethoxysilane, 27.6g of lauryl methacrylate, 4.8g of butyl acrylate, 0.5g of hydroxypropyl acrylate, 1-allyl Oxy-3-(4-nonylphenol)-2-propanol polyoxyethylene (10) ether monophosphoric acid 1.2g, azobisisobutyronitrile 0.6g, deionized water 140g;

[0042] Step 2, preparation of shell emulsion: 22.4g of dodecafluoroheptyl acrylate, 2.8g of vinyltriethoxysilane, 10.8g of lauryl methacrylate, 1-allyloxy-3-(4-nonyl Add 0.72g of phenol)-2-propanol polyoxyethylene (10) ether monophosphoric acid, 0.24g of azobisisobutyronitrile and 84g of deionized water into the generator, stir for 30min under the action of a stirrer, and the stirring speed is 2000r / min, then pour the mixed solution into a high-shear dispersing emulsifier for high-speed emulsification, the emulsification time is 10min, and the rotating speed of the high-shear dispersing emulsifier is 7000r / min, and the shell emulsion is obtained for use;

[0...

example 3

[0046] Step 1, weigh 18.7g of dodecafluoroheptyl methacrylate, 2.3g of methylvinyldiethoxysilane, 23g of hexadecyl methacrylate, 6g of methyl methacrylate, 1-allyl Oxy-3-(4-nonylphenol)-2-propanol polyoxyethylene (10) ether ammonium sulfate 0.75g, ammonium persulfate 0.5g, deionized water 150g.

[0047] Step 2, preparation of shell emulsion: add 18.7 g of dodecafluoroheptyl methacrylate, 2.3 g of methylvinyldiethoxysilane, 9 g of hexadecyl methacrylate, 1-ene Propoxy-3-(4-nonylphenol)-2-propanol polyoxyethylene (10) ether ammonium sulfate 0.45g, ammonium persulfate 0.2g and deionized water 90g, stirred under the action of a stirrer for 30min, The stirring speed is 2000r / min, and then the mixed solution is poured into a high-shear dispersing emulsifier for high-speed emulsification. The emulsification time is 10 minutes, and the speed of the high-shear dispersing emulsifier is 7000 / min, and the shell emulsion is prepared for use;

[0048] Step 3, preparation of nuclear emulsio...

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Abstract

The invention discloses a core-shell type fluorine-and-silicon-containing long carbon chain acrylate water and oil repellent agent. The agent is prepared through the following steps that 1, 20%-40% by weight of monomers, 60%-80% by weight of deionized water, 1.5%-2.5% by monomer total weight of emulsifier and 1.0%-1.5% by monomer total weight of initiator are weighed, wherein the monomers are weighed according to 30%-60% by weight of fluorine-containing monomer, 5%-10% by weight of organic silicon monomer, 20%-50% by weight of long-carbon-chain-containing acrylate monomer and 5%-15% by weight of vinyl monomer, and the sum of weight percentages of the above-mentioned components is 100%; shell emulsion and core emulsion are obtained respectively, the shell emulsion and the initiator are dropwise added into the core emulsion for a reaction, and a core-shell type fluorine-containing acrylate fabric water repellent agent is obtained. The prepared water and oil repellent agent has good water and oil repellency, and the finished fabric is small in damage to hand feeling, air permeability, breaking strength and the like.

Description

technical field [0001] The invention belongs to the technical field of textile finishing agents, and relates to a core-shell type fluorine-containing silicon-containing long carbon chain acrylate water and oil repellent agent. Background technique [0002] Fluorine-containing materials and silicone materials are the two materials with the lowest surface energy, especially polymer materials containing perfluoroalkyl groups are currently the first choice for obtaining highly hydrophobic and oleophobic film surfaces. Fluorine-containing acrylate polymers have excellent hydrophobic and oleophobic properties. When fluorine-containing acrylate polymers are used as fabric finishing agents, they can impart ideal water and oil repellent effects to fabrics without affecting the hygiene and air permeability of fabrics. However, the hand feeling and softness of fabrics after being treated with fluorine-containing acrylate finishing agents are obviously reduced, and the price of fluorine...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/22C08F220/14C08F220/28C08F230/08C08F216/14C08F230/02D06M15/277
CPCD06M15/277C08F220/18D06M2200/12D06M2200/11C08F220/1818C08F220/1808C08F220/22C08F220/14C08F230/08C08F216/1475C08F220/281C08F220/1804C08F230/02
Inventor 樊增禄李智斌李庆蔡信彬
Owner XI'AN POLYTECHNIC UNIVERSITY
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